RussianPRODUCTS
Valves
BYPASS VALVE PKBACK PRESSURE VALVES KO AND KOV
RELIEF VALVES KPS AND KPSD
THROTTLE RELIEVE VALVES CKOD
BALL BACK PRESSURE VALVES KOSHT, KOSHZ
BACK PRESSURE VALVES OF TYPE KODG
QUICK-RELEASE VALVE
 |
BYPASS VALVE PKIt is intended for discharging circulation fluid from drill pipes when the stand of pipes is lifted by the screw downhole motor, as well as for filling the drill stem during lowering, using water and drill fluids as working fluid when the bottom hole temperature is not more than 100°Ñ. |
Specification
| Specification | PK-95 | PK-108 | PK-120 | PK-172 |
| External diameter, mm | 95 | 108 | 120 | 172 |
| Diameter of liquid end, mm | 18 | 18 | 25 | 36 |
| Length, mm, not more than | 455 | 475 | 480 | 620 |
| Connection tool-joint thread as per GOST 5286-72 | 3.43 | 3.88 | 3.88 | 3-147 |
| Maximum allowed rotation torque, kN*m | 10 | 15 | 15 | 40 |
| Maximum allowed thrust force, t | 70 | 100 | 100 | 180 |
| Maximum pressure of circulating fluid, mPa | 10 | 10 | 10 | 10 |
| Pressure of valve actuation, mPa | 1+0,5 | 1+0,5 | 1+0,5 | 1+0,5 |
| Weight, kg, not more than | 22 | 30 | 37,5 | 95 |
Principle of operation:
It discharges liquid from the NKT stand of pipes to the "backside" and vice versa at the expense of pressure drop in the bore.
 |
BACK PRESSURE VALVES KO AND KOVThe back pressure valves (KO) and back pressure valves with the stopper of system pressure relief (KOV) in the normal and acid-resistant execution are used as the part of high pressure petroleum equipment. |
Specification
| Code | ÊÎ-40/50 | ÊÎ-40/50Ê | ÊÎ-70/50 | ÊÎ-70/50Ê | KOV-40/50 | KOV-40/50Ê | KOV-70/50 | KOV-70/50Ê |
| Pressure, MPa (kg/cm2), maximum working, ÐÐ | 40 (400) | 70 (700) | 40 (400) | 70 (700) | ||||
| Pressure, MPa (kg/cm2), trial, Ðtr | 56 (560) | 87,5 (875) | 56 (560) | 87,5 (875) | ||||
| Weight, kg | 20,0 | 21,5 | 20,0 | 21,5 | 21,0 | 22,5 | 21,0 | 22,5 |
 |
RELIEF VALVES KPS AND KPSDThe single-acting valves KPC with shear-shafts with the interval of actuation pressure 5-70 MPa and the nominal inside diameter of 50 mm intended for high pressure petroleum equipment. |
Specification
| Code | KPS-5/50 | KPS-8/50 | KPS-10/50 | KPS-13/50 | KPS-16/50 | KPS-20/50 | KPS-25/50 | KPS-32/50 | KPS-40/50 | KPS-50/50 | KPS-63/50 | KPS-70/50 |
| Pressure, ÌPa | 5 (50) | 8 (80) | 10 (100) | 13 (130) | 16 (160) | 20 (200) | 25 (250) | 32 (320) | 40 (400) | 50 (500) | 63 (630) | 70 (700) |
 |
THROTTLE RELIEVE VALVES CKODThey are intended for continuous self-filling of lowering casing pipe by circulation fluid or cement slurry, for preventing back motion of liquid (slurry) from the annular space to the stand of pipes during its cementing and for thrusting the dividing cementing plug. Usage of the relieve valve provides a possibility to perform lowering of the casing, installing the sphere above the valve cone or without the sphere, it provides self-clinching of the casing by circulation fluid. |
Specification
| CKOD-146-1 | CKOD-168-1 | CKOD-245-2 | |
| Connection thread, GOST 632-80 for casing pipes | ÎÒÒÌ 146-1 | ÎÒÒÌ 168-1 | ÎÒÒÌ 245 |
| Thread of Buttress | TU 3665-091-07538145-98 | ||
| Trial pressure during hydraulic test, kgf/cm² (MPa) | 225 (22,5) | ||
| Working pressure, kgf/cm² (ÌPa) | 150(15) | ||
| Flow rate through the valve, l/s | 60 | ||
| Temperature of working substance, not more than °Ñ | 150 | ||
| Diameter of flow area in the throttle, mm | 15 | ||
| Diameter of flow area in the membrane, minimal, mm | 60 | ||
| Diameter of valve ball, mm | 76±1 | ||
| Overall dimensions, mm: | |||
| - diameter | 166 | 188 | 270 |
| - length | 325 | 350 | 355 |
| Weight, kg | 19,8 | 26 | 57,2 |
 |
BALL BACK PRESSURE VALVES KOSHT, KOSHZThe valves KOShZ, KOShT are intended for automated capping and sealing the piped channel of drilling tool when drilling oil and gas bores as well as when performing repair and emergency works. The construction of back pressure valves provides a possibility to perform preventive maintenance in field conditions. These valves are produced with right and left direction of coils in the connection threads of the body frame. |
Specification
Work pressure Ðp, MPa - 35;Working substance – oil, gas, condensate, water, CaCH2 solution, drill fluids;
Temperature of working substance – up to 100°C;
Corrosion execution – for the substance with volume content of CO2 up to 6%;
Carrying capacity Q, kN – see table;
Min. passage area S, cm² – see table;
Diameter of body frame D, mm – see table;
Connection threads of the body frame as per GOST28487-90 – see table.
| Designation | KOShZ-76õ35 | KOShZ-86õ35 | KOShZ-88õ35 | KOShZ-102x35 | KOShZ-122x35 | KOShZ-133x35 | KOShZ-147x35 | KOShZ-152x35 |
| D, ìì | 95 | 108 | 108 | 120 | 146 | 155 | 178 | 197 |
| S, ñì² | 4,91 | 7,07 | 7,07 | 10,17 | 15,90 | 19,63 | 33,17 | 38,46 |
| Q, êÍ | 1070 | 1140 | 1550 | 1140 | 1900 | 1500 | 2700 | 4000 |
| A | 3-76 (3-76LH) | 3-88 (3-88LH) | 3-88 (3-88LH) | 3-102 (3-102LH) | 3-122 (3-122LH) | 3-133 (3-133LH) | 3-147 (3-147LH) | 3-152 (3-152LH) |
| Îáîçíà÷åíèå | KOShT-42x35 | KOShT-48x35 | KOShT-60x35 | KOShT-73x35 | KOShT-89x35 |
| D, ìì | 55,9 | 63,5 | 77,8 | 93,2 | 114,3 |
| S, ñì² | 380 | 530 | 855 | 1385 | 1962 |
| Q, êÍ | 150 | 180 | 300 | 500 | 600 |
| A | ãë. ÍÊÒ 42 | ãë. ÍÊÒ 48 | ãë. ÍÊÒ 60 | ãë. ÍÊÒ 73 | ãë. ÍÊÒ 89 |
 |
BACK PRESSURE VALVES OF TYPE KODGThe back pressure valve KODG is used when cementing casing pipes in the stems of vertical and horizontal bores. |
Specification
| Parameters | Code of article | |
| KODG-146 ÎÒÒÌ "BTS" | KODG-168 ÎÒÒÌ "BTS" | |
| Nominal diameter of casing pipe, mm | 146 | 168 |
| Maximum working pressure, MPa (kgf/cm²) | 25 (250) | 25 (250) |
| Excess pressure of sphere passing through the membrane, kgf/cm² | 5...15 | 5...15 |
| Hydraulic test pressure, MPa (kgf/cm²) | 30 (300) | 30 (300) |
| Maximum allowed temperature, Ñ° | 130 | 130 |
| Diameter of hole in the throttle, mm | 14 | 14 |
| Minimal diameter of flow area in the membrane, mm | 60 | 60 |
| Diameter of sphere, mm | 76 | 76 |
| External diameter of valve , mm | 166 | 188 |
| Length, mm | 430 with thread "BTS" | 423 with thread "BTS" |
 |
QUICK-RELEASE VALVEThe quick-release valve 2607.3040.02.00.00 (analogue 4062.71.070 ) is intended for air utilities of drill unitsMaterial of main details - aluminum alloy AK-12 as per GOST 1583-93. |